尼泊尔采购需求：硅酮密封胶、粘合剂密封胶、聚氨酯密封胶、周边密封胶、防风雨中性硅酮密封胶、聚氨酯密封胶

I'm looking to purchase 1kg of your product in both black and white colors. Could you provide me with your available options for these colors, including any details about material composition, quality specifications, and price per kilogram? Additionally, if there are any minimum order quantities or bulk pricing deals available, please let me know. I'd appreciate any relevant information, such as lead time for delivery and payment terms. Looking forward to your prompt response so we can proceed further!